Anonymous wrote:Everyone is welcome to Mass. As the PP said, don't take communion (not because you're Muslim, but because you aren't Catholic in "good standing" - there are lots of Catholics who shouldn't be taking communion too). You can either just wait in the pew (step out so people can get by) or go up, cross your arms over your chest, and you'll receive a blessing rather than communion.
You also don't have to kneel (fine if you want to), if you don't, lean forward a little bit so the people behind you aren't right up in your neck
You should definitely go - if you are serious about this boyfriend, sounds like his faith is important to him. You will have to figure out how to have your faiths co-exist, and it's easier if you start earlier than say "We'll figure it out if/when we get married." He should also be participating in your faith with you to some degree.
If you're not serious about him, well - then who cares either way?